In Cellular Cancer Markers leading pathologists and physicians review today's most promising cellular cancer markers, an important emerging class of progstic markers that can be used in the clinical evaluation of cancer patients. The markers reviewed have been chosen because they are biologically relevant to the growth of cells and possess an accurate and reproducible assay for detection. They also are predictors of tumor behavior, are useful in making clinical decisions, and are cost effective. Cellular Cancer Markers provides a status report for markers of tumor cell activation, proliferation, and longevity that makes possible an informed judgment regarding the value of many newly proposed tumor markers. It also offers insight into the latest approaches to diagsing cancer and an appreciation of how these marker-based tests can clarify the progsis of cancer.